1#!/bin/sh
2# Created by: Miroslav Lachman <000.fbsd@quip.cz>
3
4# Backup of zpool list, zfs list, zpool properties and zfs properties
5# for each filesystem. The backup will be stored in /var/backups.
6
7# If there is a global system configuration file, suck it in.
8#
9if [ -r /etc/defaults/periodic.conf ]
10then
11	. /etc/defaults/periodic.conf
12	source_periodic_confs
13fi
14
15bak_dir=/var/backups
16
17rotate() {
18	base_name=$1
19	show_diff=$2
20	file="$bak_dir/$base_name"
21
22	if [ -f "${file}.bak" ] ; then
23		rc=0
24		if cmp -s "${file}.bak" "${file}.tmp"; then
25			rm "${file}.tmp"
26		else
27			rc=1
28			[ -n "$show_diff" ] && diff "${file}.bak" "${file}.tmp"
29			mv "${file}.bak" "${file}.bak2" || rc=3
30			mv "${file}.tmp" "${file}.bak" || rc=3
31		fi
32	else
33		rc=1
34		mv "${file}.tmp" "${file}.bak" || rc=3
35		[ -n "$show_diff" ] && cat "${file}.bak"
36	fi
37}
38
39case "$daily_backup_zfs_verbose" in
40	[Yy][Ee][Ss]) show="YES"
41esac
42
43case "$daily_backup_zfs_enable" in
44	[Yy][Ee][Ss])
45
46    zpools=$(zpool list $daily_backup_zpool_list_flags)
47
48	if [ -z "$zpools"  ]; then
49		echo 'daily_backup_zfs_enable is set to YES but no zpools found.'
50		rc=2
51	else
52		echo ""
53		echo "Backup of ZFS information for all imported pools";
54
55		echo "$zpools" > "$bak_dir/zpool_list.tmp"
56		rotate "zpool_list" $show
57
58		zfs list $daily_backup_zfs_list_flags > "$bak_dir/zfs_list.tmp"
59		rotate "zfs_list" $show
60	fi
61	;;
62	*)  rc=0;;
63esac
64
65case "$daily_backup_zfs_props_enable" in
66    [Yy][Ee][Ss])
67
68    zfs get $daily_backup_zfs_get_flags > "$bak_dir/zfs_props.tmp"
69    rotate "zfs_props"
70
71    zpool get $daily_backup_zpool_get_flags > "$bak_dir/zpool_props.tmp"
72    rotate "zpool_props"
73    ;;
74esac
75
76exit $rc
77